- Move markup around to make the loading page a window of its own
instead of a sub-window of `#chat`
- Remove inline styling in loading page
- Use same styling than other non-messages windows for title and text
- Add a `z-index` to the loading page to hide the message input
- Vertically align the sign in page title with all other titles
- Make sure all `h1.title`s are bottom-margined consistently and remove
negative margin on the Settings page title to align with the Connect
page title (Reverting/Improving this should be done at the `h2` level
instead)
e5dddbac01